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HomeProductsIntegrated Circuits (ICs)Linear - Amplifiers - Instrumentation, OP Amps, Buffer AmpsLMC6035IMM
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LMC6035IMM - Texas Instruments

Manufacturer Part Number
LMC6035IMM
Manufacturer
Texas Instruments
Allelco Part Number
32D-LMC6035IMM
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
9,450 pcs available, New & Original
Parts Description
IC CMOS 2 CIRCUIT 8VSSOP
Package
8-VSSOP
Data sheet
-
RoHs Status
 
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In stock: 9450

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Specifications

LMC6035IMM Tech Specifications
Texas Instruments - LMC6035IMM technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - LMC6035IMM

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Supply Span (Min) 2 V
Voltage - Supply Span (Max) 15.5 V
Voltage - Input Offset 500 µV
Supplier Device Package 8-VSSOP
Slew Rate 1.5V/µs
Series Automotive, AEC-Q100
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Package Bulk
Product Attribute Attribute Value
Output Type Differential, Rail-to-Rail
Operating Temperature -40°C ~ 85°C
Number of Circuits 2
Mounting Type Surface Mount
Gain Bandwidth Product 1.4 MHz
Current - Supply 650µA (x2 Channels)
Current - Output / Channel 8 mA
Current - Input Bias 0.02 pA
Amplifier Type CMOS

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status RoHS non-compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Affected
ECCN EAR99

Parts Introduction

Manufacturer Part Number

LMC6035IMM

Manufacturer

Texas Instruments

Introduction

Dual Rail-to-Rail CMOS Operational Amplifier

Designed for Automotive and Industrial Applications

Product Features and Performance

Wide supply voltage range: 2V to 15.5V

Low input bias current: 0.02pA

High gain bandwidth product: 1.4MHz

High slew rate: 1.5V/μs

Automotive AEC-Q100 qualified

Product Advantages

Excellent DC and AC performance

Robust and reliable for demanding applications

Wide operating temperature range: -40°C to 85°C

Key Technical Parameters

Number of Circuits: 2

Gain Bandwidth Product: 1.4MHz

Supply Voltage Range: 2V to 15.5V

Input Offset Voltage: 500μV

Supply Current per Channel: 650μA

Output Current per Channel: 8mA

Quality and Safety Features

RoHS non-compliant

Automotive-grade AEC-Q100 qualified

Compatibility

8-VSSOP package compatible with various surface mount applications

Application Areas

Automotive electronics

Industrial instrumentation

General-purpose amplifier applications

Product Lifecycle

This product is not nearing discontinuation, and replacement or upgrade options are available.

Key Reasons to Choose This Product

Excellent performance characteristics for demanding applications

Wide supply voltage range and low power consumption

Automotive-grade qualification for reliability in harsh environments

Robust and reliable design for long-term use

Frequently Asked Questions(FAQ)

What are the key performance trade-offs when selecting the LMC6035IMM for a precision analog design requiring rail-to-rail output?
The LMC6035IMM offers exceptional input bias current of 0.02 pA and an input offset voltage of 500 µV, which are critical for high-precision applications such as sensor signal conditioning or low-noise amplification. However, these benefits come with a trade-off in slew rate (1.5 V/µs) and gain bandwidth product (1.4 MHz), limiting its suitability for fast transient response or wideband signal processing. Additionally, while the device operates across a supply range of 2 V to 15.5 V, the total supply current is 650 µA per channel, which may impact power efficiency in battery-powered systems. Designers must balance ultra-low input error characteristics against dynamic performance requirements.
How does the LMC6035IMM compare to the AD8667ARMZ in terms of input noise and DC accuracy for instrumentation amplifier front ends?
The LMC6035IMM provides superior DC accuracy with an input offset voltage of 500 µV and exceptionally low input bias current (0.02 pA), making it advantageous for DC-coupled precision stages where drift and offset dominate error budgets. In contrast, the AD8667ARMZ typically features lower input voltage noise (around 8 nV/√Hz vs. the LMC6035IMM’s ~25 nV/√Hz), which becomes dominant at higher frequencies. Thus, if the application prioritizes long-term stability and minimal DC error—such as in strain gauge or thermocouple interfaces—the LMC6035IMM may offer better overall accuracy despite higher broadband noise.
Can the LMC6035IMM reliably drive capacitive loads in unity-gain buffer configurations, and what limitations should be considered?
The LMC6035IMM can drive moderate capacitive loads in unity-gain buffering due to its internal compensation, but stability degrades beyond approximately 200 pF without series resistance. Exceeding this threshold may introduce peaking or oscillation, especially when driving long PCB traces or additional filtering stages. For capacitive loads above 1 nF, external isolation resistors (typically 10–100 Ω) are recommended. This behavior stems from the limited phase margin under heavy capacitive loading, a common constraint in CMOS op-amps with moderate open-loop gain.
What design precautions are necessary when using the LMC6035IMM near the lower end of its supply voltage range (e.g., 2.0 V to 3.0 V)?
At supply voltages close to 2 V, the LMC6035IMM maintains rail-to-rail output swing, but headroom for large-amplitude signals decreases significantly. Output saturation limits increase, reducing available signal amplitude before clipping occurs. Additionally, internal biasing circuits may exhibit reduced linearity, potentially increasing distortion in high-swing applications. It is advisable to derate output swing by 10–20% when operating below 3 V to maintain acceptable THD performance. Also, ensure load impedance remains sufficiently high to avoid excessive droop due to output current limitations (8 mA max).
Is the LMC6035IMM suitable for battery-operated IoT sensor nodes requiring both low quiescent current and stable operation over temperature?
While the LMC6035IMM consumes only 650 µA total supply current—comparable to other CMOS amplifiers—its operating temperature range is restricted to -40°C to +85°C, excluding extended industrial or automotive environments. More critically, although input bias current is extremely low, the lack of lead-free compliance (RoHS non-compliant) and absence of moisture sensitivity level documentation beyond MSL 1 suggest limited qualification for harsh environmental conditions. Therefore, despite favorable power consumption, alternative devices like the LMP7721 or newer RoHS-compliant TI parts may be preferable for mission-critical battery applications requiring full environmental robustness.
How does the gain bandwidth product (GBW) of the LMC6035IMM influence closed-loop bandwidth selection in active filter designs?
With a GBW of 1.4 MHz, the LMC6035IMM supports closed-loop gains up to approximately 1.4 MHz / desired bandwidth. For example, a non-inverting gain of 10 yields a usable bandwidth of ~140 kHz, assuming sufficient phase margin. In second-order active filters, this limits achievable cutoff frequencies unless gain is carefully traded off with roll-off steepness. Higher-order filters with modest gain (e.g., 2x per stage) can extend usable bandwidth, but designers must account for GBW degradation at higher gains and verify settling time meets system timing requirements.
What substitution options exist if the LMC6035IMM is unavailable, and how do they differ in critical parameters?
Direct substitutes include the LMC6035IMM/NOPB (identical part with Pb-free finish), AD8667ARMZ, and AD8662ARMZ. The LMC6035IMM/NOPB offers identical electrical performance but complies with RoHS standards. The AD8667ARMZ has similar GBW (~1.8 MHz) and lower input noise, improving high-frequency SNR, but slightly higher input offset (up to 1 mV). The AD8662ARMZ offers dual-channel operation with comparable specs but typically higher power (900 µA). Selection depends on whether RoHS compliance, noise floor, or power budget is the primary constraint.
What layout considerations are essential to preserve the LMC6035IMM’s low input offset and bias current performance?
To minimize leakage paths affecting the 0.02 pA input bias current, guard rings around input pins and careful routing of high-impedance traces are essential. Use short connections to ground planes and avoid routing sensitive traces near noisy digital signals or power rails. Input capacitance should be kept below 10 pF to prevent phase lag, and bypass capacitors (0.1 µF ceramic) must be placed within 5 mm of the VCC and GND pins. Thermal symmetry between channels also helps maintain matched offset voltages in differential configurations.
Can the LMC6035IMM drive inductive loads or relay coils directly, and what protection circuitry is recommended?
No, the LMC6035IMM is not rated to drive inductive loads such as relays or motors due to its maximum output current of 8 mA and lack of built-in flyback diodes. Inductive kickback can damage the device. Instead, use discrete transistors or dedicated driver ICs (e.g., ULN2003) with external freewheeling diodes. Always ensure load current draw remains well below 8 mA per channel to prevent thermal overload, even during transient conditions.
How does the slew rate of 1.5 V/µs affect the LMC6035IMM’s performance in pulse amplification or edge detection circuits?
A slew rate of 1.5 V/µs allows the LMC6035IMM to handle moderate-rate pulses without significant rise-time degradation. For a 1 V step, the minimum rise time is ~0.67 µs. In edge-triggered comparators or pulse-shaping stages, this limits maximum allowable signal slope before slewing distorts waveform fidelity. Applications involving sub-microsecond edges or large-amplitude swings may require faster alternatives, but for most sensor-derived digital signals or audio-band processing, this rate is sufficient when gain is kept below 10.
What is the impact of the LMC6035IMM’s single-supply operation on AC-coupling strategies in measurement systems?
As a rail-to-rail CMOS amplifier, the LMC6035IMM supports single-supply operation down to 2 V, enabling direct connection to unipolar ADC inputs without level shifting. This simplifies biasing compared to traditional bipolar supplies. However, AC coupling requires careful capacitor sizing to avoid DC blocking issues with ultra-low bias currents—leakage through small capacitors could cause slow drift. Use coupling capacitors ≥1 µF with low-leakage dielectrics (X7R or better) for DC-blocking in single-supply mode, especially over extended temperature ranges.
Does the LMC6035IMM support true rail-to-rail input in all supply voltage conditions within its specified range?
Yes, the LMC6035IMM provides true rail-to-rail input and output across the entire supply span from 2 V to 15.5 V. Input common-mode range includes both negative and positive rails even near minimum supply, allowing signals to swing arbitrarily close to ground without loss of functionality. This makes it ideal for micropower sensing applications where input signals originate from resistive dividers or sensors referenced to ground.
What are the implications of the LMC6035IMM’s non-RoHS status for international manufacturing and regulatory compliance?
The LMC6035IMM’s RoHS non-compliance means it contains restricted substances such as lead exceeding permissible thresholds, making it unsuitable for sale in the European Union or other jurisdictions enforcing strict hazardous substance directives. Manufacturers seeking global market access must substitute with RoHS-compliant variants like the LMC6035IMM/NOPB or migrate to newer TI devices such as the LPV521. Supply chain documentation must reflect this limitation to avoid customs or certification rejections.
How does input offset voltage drift over temperature affect calibration needs when using the LMC6035IMM in precision systems?
Although not explicitly specified, typical CMOS op-amps exhibit input offset drift of 1–10 µV/°C. Assuming a conservative 2 µV/°C for the LMC6035IMM, over a 60°C operating window (e.g., -20°C to +40°C), offset could vary by ±120 µV. Combined with initial 500 µV offset, this represents up to 24% relative error in low-level signals (<5 mV). Therefore, automatic or periodic offset nulling may be necessary in systems requiring sub-millivolt accuracy without trimming components.
What happens to bandwidth and phase margin if the LMC6035IMM is operated at high closed-loop gains (e.g., >20)?
At closed-loop gains above 20, the LMC6035IMM’s bandwidth drops according to its 1.4 MHz GBW: for a gain of 20, effective bandwidth reduces to ~70 kHz. Phase margin degrades due to increased interaction between feedback network and amplifier dynamics, potentially leading to instability if compensation isn’t managed. In practice, gains above 10 should be avoided in single-stage configurations; multi-stage filtering with lower per-stage gain is preferred to maintain stability and predictable frequency response.
Is the LMC6035IMM compatible with standard ESD protection structures in mixed-signal PCBs?
The LMC6035IMM lacks integrated ESD protection diodes, so external clamping (e.g., TVS diodes or RC networks) is required if input lines are exposed to human-body model (HBM) events or cable discharges. Typical HBM thresholds for similar packages are ±2 kV, but without internal diodes, added protection adds trace inductance and capacitance that may interfere with high-impedance inputs. Always follow board-level ESD best practices and validate immunity during prototype testing.
What role does the 8-VSSOP package play in thermal and electrical performance of the LMC6035IMM?
The 8-VSSOP package (3.00 mm × 4.40 mm) enables compact layout suitable for space-constrained designs while providing adequate thermal dissipation via exposed pad soldering. Its small footprint reduces parasitic capacitance and inductance, supporting clean signal integrity. However, continuous output currents above 5 mA generate measurable junction heating, though within safe operating limits. Proper grounding through the exposed pad improves heat spreading and reduces thermal resistance, enhancing reliability in densely populated boards.
When would the LMC6035IMM be preferable over a JFET-input op-amp despite its lower speed and higher noise?
The LMC6035IMM excels over JFET-input amplifiers in applications demanding ultra-low input bias current (0.02 pA vs. ~1 pA for JFETs) and DC precision, such as integrating sensors (e.g., piezoelectric or capacitive MEMS) where charge leakage dominates error. Its rail-to-rail output also simplifies interface to modern ADCs powered from single supplies. Though slower and noisier than FET-types at high frequencies, its CMOS architecture ensures compatibility with deep-submicron processes and lower flicker noise at very low frequencies—making it ideal for DC-coupled, low-frequency precision front ends.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments LMC6035IMM

Product Attribute LMC6035IMM/NOPB LMC6035IMMX LMC6035IM/NOPB LMC6035IMXQ1
Part Number LMC6035IMM/NOPB LMC6035IMMX LMC6035IM/NOPB LMC6035IMXQ1
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Current - Input Bias - - - -
Voltage - Input Offset - - - -
Series - - - -
Number of Circuits - - - -
Output Type - Current - Unbuffered Voltage - Buffered -
Amplifier Type - - - -
Slew Rate - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Voltage - Supply Span (Max) - - - -
Voltage - Supply Span (Min) - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Current - Output / Channel - - - -
Gain Bandwidth Product - - - -
Current - Supply - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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Texas Instruments

LMC6035IMM

Texas Instruments
32D-LMC6035IMM

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